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Rolls-Royce RB3011
The Rolls-Royce RB3011 (previously designated RB2011) is a prototype propfan engine in development by Rolls-Royce plc. The design is also known as an "open rotor" engine. Design and development The RB3011 is designed for the 180–300 passenger aircraft (e.g. Boeing 737 or Airbus A320). The RB3011 was renamed from RB2011, because Rolls-Royce employees kept confusing the ''2011'' with the expected service entry date. Rolls-Royce bought the Allison Engine Company in 1995, and has studied the Pratt & Whitney/Allison 578-DX propfan engine built in the 1980s. The engine has two contra-rotating rotors (fans) on the outside of the engine nacelle, either at the front of the assembly ("tractor") or at the rear ("pusher"). Both pusher and tractor open rotor designs form part of Rolls-Royce's long-term "15-50" vision, which is examining various architectures to tackle the 150 seat-aircraft market. Within 15-50 group – named for specific fuel consumption reductions of 15–50% c ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
WikiProject Aircraft
A WikiProject, or Wikiproject, is a Wikimedia movement affinity group for contributors with shared goals. WikiProjects are prevalent within the largest wiki, Wikipedia, and exist to varying degrees within sister projects such as Wiktionary, Wikiquote, Wikidata, and Wikisource. They also exist in different languages, and translation of articles is a form of their collaboration. During the COVID-19 pandemic, CBS News noted the role of Wikipedia's WikiProject Medicine in maintaining the accuracy of articles related to the disease. Another WikiProject that has drawn attention is WikiProject Women Scientists, which was profiled by '' Smithsonian'' for its efforts to improve coverage of women scientists which the profile noted had "helped increase the number of female scientists on Wikipedia from around 1,600 to over 5,000". On Wikipedia Some Wikipedia WikiProjects are substantial enough to engage in cooperative activities with outside organizations relevant to the field at issue. For e ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Bedford
Bedford is a market town in Bedfordshire, England. At the 2011 Census, the population of the Bedford built-up area (including Biddenham and Kempston) was 106,940, making it the second-largest settlement in Bedfordshire, behind Luton, whilst the Borough of Bedford had a population of 157,479. Bedford is also the historic county town of Bedfordshire. Bedford was founded at a ford on the River Great Ouse and is thought to have been the burial place of King Offa of Mercia, who is remembered for building Offa's Dyke on the Welsh border. Bedford Castle was built by Henry I of England, Henry I, although it was destroyed in 1224. Bedford was granted borough status in 1165 and has been represented in Parliament since 1265. It is known for its large Italians in the United Kingdom, population of Italian descent. History The name of the town is believed to derive from the name of a Saxon chief called Beda, and a Ford (crossing), ford crossing the River Great Ouse. Bedford was a marke ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Rolls-Royce Aircraft Gas Turbine Engines
Rolls-Royce (always hyphenated) may refer to: * Rolls-Royce Limited, a British manufacturer of cars and later aero engines, founded in 1906, now defunct Automobiles * Rolls-Royce Motor Cars, the current car manufacturing company incorporated in 1998, a subsidiary of BMW Group * Rolls-Royce Motors, owner of the former car division incorporated in 1973, bought by Vickers in 1980, a subsidiary of Volkswagen Group from 1998 to 2002 * List of Rolls-Royce motor cars Aerospace and nuclear power * Rolls-Royce Holdings plc, an aerospace, power systems and defence company and Rolls-Royce's current principal operating company **Rolls-Royce Deutschland ***Rolls-Royce Power Systems ** Rolls-Royce Marine Power Operations ** Rolls-Royce North America ** Rolls-Royce Turbomeca ** Rolls-Royce Kamawea, now Kamewa ** Rolls-Royce Controls and Data Services See also * Rose Royce, an American soul and R&B group * Roll (other) * Royce (other) Markus Bennett is an American hip-hop re ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Kuznetsov NK-93
The Kuznetsov NK-93 was a civilian aircraft engine, a hybrid between a turbofan and a turboprop known as a propfan. The engine was also unique in having a separate duct around the contra-rotating propellers, as most other propfans are unducted. Once described in a respected aviation encyclopedia as "potentially the most fuel-efficient aircraft jet engine ever to be tested", the NK-93 was targeted for derivatives of Soviet/Russian airliners such as the Ilyushin Il-96, Tupolev Tu-204, and Tupolev Tu-330. Five in-flight engine tests were conducted on the NK-93 from December 2006 to December 2008. Development The NK-93 engine was developed beginning in the late 1980s, although the design of the engine was allegedly envisioned as early as 1968. Many of the design features were adopted from the Kuznetsov NK-92, the military complement to the NK-93. The core of the NK-93 was to form the foundation of a family of direct-drive turbofans and geared propfans, ranging from in thrust. It w ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Kuznetsov NK-12
The Kuznetsov NK-12 is a Soviet turboprop engine of the 1950s, designed by the Kuznetsov design bureau. The NK-12 drives two large four-bladed contra-rotating propellers, diameter (NK-12MA), and diameter (NK-12MV). It is the most powerful turboprop engine to enter service. Design and development The design that eventually became the NK-12 turboprop was developed after World War II by a team of Soviet scientists and deported German engineers under Ferdinand Brandner, who had worked for Junkers previously; the design bureau was headed by chief engineer Nikolai D. Kuznetsov. Thus, the NK-12 design evolved from late-war German turboprop studies. This started with the postwar development of the wartime Jumo 022 turboprop design that was designed to develop , weighing . The effort continued with a , weighing , completed by 1947. Evolution to the TV-12 engine required extensive use of new Soviet-developed alloys and was completed in 1951. The NK-12 is the most powerful turboprop ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Europrop TP400
The Europrop International TP400-D6 is an 11,000 shp (8,200 kW) powerplant, developed and produced by Europrop International for the Airbus A400M Atlas military transport aircraft. The TP400 is the most powerful turboprop in service using a single propeller; only the Kuznetsov NK-12 using contra-rotating propellers is larger. Development The TP400 was originally selected by Airbus Military to power the A400M in December 2000. However, Airbus reopened the engine competition in February 2002, because the engine core, which is based on the Snecma M88 turbofan fighter engine, was too heavy and used too much fuel. By May 2002, Pratt & Whitney Canada (P&WC) announced a proposal involving a turboprop with a core based on its PW800 turbofan, a regional jet engine under development that had a geared fan at the time; the concept would later be called the PW180. In 2003, around the 30 April decision deadline, Airbus Chief Executive Noel Forgeard told reporters that the P&WC ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
List Of Aircraft Engines
This is an alphabetical list of aircraft engines by manufacturer. 0–9 2si *2si 215 *2si 230 * 2si 430 * 2si 460 *2si 500 * 2si 540 * 2si 690 3W ''Source: RMV'' *3W 106iB2 *3W-110 *3W-112 *3W-170 *3W-210 *3W-220 A Abadal (Francisco Serramalera Abadal) *Abadal Y-12 350/400 hp ABC ''Source: Lumsden.'' * ABC 8 hp * ABC 30hp V-4 * ABC 45hp V-6 * ABC 60hp V-8 * ABC 85hp V-6 * ABC 100hp V-8 * ABC 115 hp * ABC 170hp V-12 * ABC 225hp V-16 *ABC Dragonfly *ABC Gadfly *ABC Gnat *ABC Hornet * ABC Mosquito *ABC Scorpion *ABC Wasp *ABC type 10 APU *ABC type 11 APU ABECO ''Source: RMV'' *ABECO GEM Aberg ''Source: RMV'' *Type Sklenar ABLE ''Source: RMV'', Able Experimental Aircraft Engine Co. (Able Experimental Aircraft Engine Co., Altimizer, Hoverhawk (US)) *ABLE 2275 *ABLE 2500 *ABLE VW x 2 Geared Drive Accurate Automation Corp *Accurate Automation AT-1500 *Accurate Automation AT-1700 Ace (Ace American Engr Corp, Horace Keane Aeroplane Co, North Beac ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Progress D-236
Progress is the movement towards a refined, improved, or otherwise desired state. In the context of progressivism, it refers to the proposition that advancements in technology, science, and social organization have resulted, and by extension will continue to result, in an improved human condition; the latter may happen as a result of direct human action, as in social enterprise or through activism, or as a natural part of sociocultural evolution. The concept of progress was introduced in the early-19th-century social theory, social theories, especially Cultural evolution, social evolution as described by Auguste Comte and Herbert Spencer. It was present in the Age of Enlightenment, Enlightenment's philosophy of history, philosophies of history. As a goal, social progress has been advocated by varying realms of political ideologies with different theories on how it is to be achieved. Measuring progress Specific indicators for measuring progress can range from economic data, tech ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Progress D-27
The Progress D-27 is a three-shaft propfan engine developed by Ivchenko Progress. The gas generator was designed using experience from the Lotarev D-36 turbofan. The D-27 engine was designed to power more-efficient passenger aircraft such as the abandoned Yakovlev Yak-46 project, and it was chosen for the Antonov An-70 military transport aircraft. As of 2019, the D-27 is the only contra-rotating propfan engine to enter service. Design and development The engine was launched in 1985 by the Ivchenko-Progress Design Bureau for commercial and military transport aircraft. It was designed to meet the expected growth in demand for new aero engines for civil and military applications. It has a take-off rating of for the Antonov An-70. Gunston lists ratings between for the engine. In 1990, the D-27 engine was proposed for the 150-162 seat Yakovlev Yak-46 airliner. This twin-engined derivative of the three-engine Yakovlev Yak-42 would mount the two D-27 engines on the rear fuselage. A ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
General Electric GE36
The General Electric GE36 was an experimental aircraft engine, a hybrid between a turbofan and a turboprop, known as an unducted fan (UDF) or propfan. The GE36 was developed by GE Aviation, General Electric Aircraft Engines, with its CFM International equal partner Snecma taking a 35 percent share of development. Development was cancelled in 1989. Development General Electric (GE) started performing studies and component test work on the concept that would become the UDF in 1981, based on the initial results of early National Aeronautics and Space Administration (NASA) propfan technology studies that the aerospace agency first released to engine makers in 1980. GE then followed up with full-scale development testing of the GE36 starting in 1982. NASA gave GE a $20.4 million contract in February 1984 to study the concept after the company showed the agency its work in December 1983, as NASA's own propfan research efforts were advancing at a slower pace and were dependent on additio ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Specific Fuel Consumption (thrust)
Thrust-specific fuel consumption (TSFC) is the fuel efficiency of an engine design with respect to thrust output. TSFC may also be thought of as fuel consumption (grams/second) per unit of thrust (newtons, or N), hence ''thrust-specific''. This figure is inversely proportional to specific impulse, which is the amount of thrust produced per unit fuel consumed. TSFC or SFC for reaction engine, thrust engines (e.g. turbojets, turbofans, ramjets, rocket engine, rockets, etc.) is the mass of fuel needed to provide the net thrust for a given period e.g. lb/(h·lbf) (pounds of fuel per hour-pound of thrust) or g/(s·kN) (grams of fuel per second-kilonewton). Mass of fuel is used, rather than volume (gallons or litres) for the fuel measure, since it is independent of temperature. Specific fuel consumption of air-breathing jet engines at their maximum efficiency is more or less proportional to exhaust speed. The fuel consumption ''per mile'' or ''per kilometre'' is a more appropriate compar ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Marknesse
Marknesse is a village in the Dutch province of Flevoland. It is a part of the municipality of Noordoostpolder, and lies about east of Emmeloord. History Marknesse was first mentioned in 1950 as Marknesse, and is a combination of border land and headland. It has been named after a flooded village near Urk. The village was founded in 1946 as B. In 1943, temporary barracks were built to ''polder'' the Noordoostpolder. The plan of the village by was approved in 1949. The village has a green central axis with the Dutch Reformed Church in one corner and the Reformed Church Calvinism (also called the Reformed Tradition, Reformed Protestantism, Reformed Christianity, or simply Reformed) is a major branch of Protestantism that follows the theological tradition and forms of Christian practice set down by John Cal ... on the other side, and the flanks contain shops. Most of the houses are oriented north–south. After the merger of the two Reformed Churches into the Protest ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
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